Update location of Containerfile

Signed-off-by: Webster Mudge <wmudge@cloudera.com>

Author: wmudge

.github/workflows/validate_image.yml

@@ -61,7 +61,7 @@ jobs:
         uses: actions/upload-artifact@v3
         with:
           name: ${{ inputs.PROFILE }}-Containerfile
-          path: ./Containerfile
+          path: ./context/Containerfile
 
       - name: Download the base image
         if: ${{ inputs.PROFILE != 'base' }}
@@ -102,3 +102,4 @@ jobs:
         with:
           name: base-${{ steps.sha.outputs.sha-short }}
           path: /tmp/base-${{ steps.sha.outputs.sha-short }}.tar
+          retention-days: 2